Double-edge hemming device for annular support ring

Abstract

The present invention provides a double-edge folding device for an annular support ring, comprising a frame, a tensioning assembly, a support structure, and a folding mechanism. The frame has a mounting platform. The tensioning assembly has a tensioning portion located above the mounting platform, and the upper and lower ends of the tensioning portion are respectively provided with contact planes, and the tensioning portion can be provided for the annular support ring to be mounted. There are multiple support structures, each of which is provided for the annular support ring mounted on the tensioning portion to be mounted, so that the upper and lower edges of the annular support ring respectively extend out of two contact planes along the vertical direction. The folding mechanism has two bending portions located on both sides of the tensioning portion along the vertical direction and corresponding to the two contact planes, and the folding mechanism can drive the two bending portions to move radially along the tensioning portion to fold the two edges of the annular support ring outward. The double-edge folding device for an annular support ring provided by the present invention only requires one assembly of the annular support ring to achieve simultaneous folding of the two edges, thereby improving production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of folding devices, and in particular relates to a double-edge folding device for an annular support ring. Background Art

[0002] Filters used in the manufacture of beverages (such as beer, etc.) usually involve an annular support ring (metal cylinder ring). The annular support ring serves as a support for the filter body and also ensures the overall assembly.

[0003] In the prior art, in order to facilitate assembly and connection, the edges at both ends of the annular support ring need to be folded to form annular flanges to ensure that the filter mesh and the locking structure are placed at both ends. However, for the manufacture of the annular support ring, a tensioning disk is usually used. After the annular support ring is placed on the tensioning disk, it is supported and fixed by the tensioning disk. One end edge of the annular support ring extends along the axial direction of the tensioning disk, and the edge is folded by a folding roller. After folding, it is disassembled and assembled, and the other end edge of the annular support ring is folded. This manufacturing method results in the production of each annular support ring requiring two assembly processes with the tensioning disk, which is time-consuming and labor-intensive, with low production efficiency and poor practicality. Summary of the Invention

[0004] An embodiment of the present invention provides a double-edge folding device for an annular support ring, aiming to solve the problem of poor practicality caused by low efficiency of the existing annular support ring edge folding method.

[0005] To achieve the above object, the technical solution adopted by the present invention is to provide a double-edge folding device for an annular support ring, comprising:

[0006] a rack having a mounting platform;

[0007] A tensioning assembly is provided on the frame and comprises a tensioning portion located above the mounting platform, wherein contact planes are respectively provided at the upper and lower ends of the tensioning portion, and the tensioning portion is used for the annular support ring to be sleeved;

[0008] A plurality of support structures are provided, each of the support structures is arranged around the tensioning portion, and each of the support structures is used to support an annular support ring sleeved on the tensioning portion, so that the upper and lower edges of the annular support ring extend vertically out of the two contact planes respectively;

[0009] The folding mechanism is arranged on the mounting platform and has two bending parts which are respectively located on both sides of the tensioning part along the vertical direction and correspond to the two contact planes. The folding mechanism is used to drive the two bending parts to move radially along the tensioning part to fold the two edges of the annular support ring outward.

[0010] In a possible implementation, the folding mechanism includes:

[0011] a sliding frame, slidably connected to a slide rail provided on the mounting platform, and configured to move radially along the tensioning portion; the sliding frame is also connected to a driving structure provided on the mounting platform;

[0012] a pressure roller, rotatably disposed at one end of the slide frame close to the tensioning portion, with its rotation axis arranged parallel to the rotation axis of the tensioning portion, and configured to be in rolling contact with the outer wall of the annular support ring;

[0013] A lower hemming assembly is provided in the slide frame and is slidably arranged along the radial direction of the tensioning portion and is located below the tensioning portion. The lower hemming assembly is connected to a lower telescopic structure provided on the slide frame.

[0014] An upper folding assembly is arranged in the slide frame along the radial sliding direction of the tensioning portion and is located above the tensioning portion. The upper folding assembly is connected to an upper telescopic structure arranged on the slide frame.

[0015] In one possible implementation, the lower hem assembly includes:

[0016] A lower sliding seat is slidably connected to the sliding frame and connected to the lower telescopic structure;

[0017] The lower bending roller is rotatably arranged on the lower sliding seat near the end of the tensioning part, and the lower bending roller is one of the bending parts.

[0018] In one possible implementation, the upper hem assembly includes:

[0019] An upper slide is slidably connected to the slide frame and connected to the upper telescopic structure; the upper slide has a front end disposed close to the tensioning portion and a rear end disposed away from the tensioning portion;

[0020] The flip plate has a head end and a tail end, the flip plate is rotatably disposed in the notch of the upper slide, the adapter shaft of the flip plate is located between the head end and the tail end, and the axis is perpendicular to the sliding direction of the upper slide; the head end of the flip plate has a tendency to continuously pitch upward;

[0021] An upper bending roller is rotatably arranged at the head end of the flip plate to pitch and rotate under the drive of the flip plate; the upper bending roller is one of the bending parts;

[0022] A sliding limit rod is slidably arranged on the upper slide seat along the sliding direction of the upper slide seat, and a limit block that can be vertically extended is provided at the top end of the sliding limit rod, and the limit block can be engaged with the avoidance opening arranged at the rear end of the flip plate;

[0023] a spring, disposed on the upper slide, for bouncing the sliding limit rod so that the sliding limit rod has a tendency to continuously move toward the front end of the upper slide;

[0024] A fixed wedge block is fixed on the sliding frame, extends into the notch, and corresponds to the limit block;

[0025] When the upper slide moves to the extreme position close to the tensioning part, the sliding limit rod is located at the tail end of the flip plate and is clamped with the flip plate, and the flip plate remains in a horizontal state; when the upper slide moves to the extreme position away from the tensioning part, the sliding rod is squeezed by the fixed wedge block and released from the clamping with the flip plate, and the sliding limit rod is pushed to the head end of the flip plate by the spring, and the head end of the flip plate pitches upward.

[0026] In a possible implementation, the upper folding assembly further includes a limiting cross bar, which is located at the end of the upper slide close to the tensioning portion and is used to limit the flip plate that is flipped downward in pitch so that the flip plate is set horizontally.

[0027] In a possible implementation, both ends of the sliding limit rod extend out of the upper slide seat respectively, and are slidably connected to slide grooves provided on both sides of the slide frame respectively.

[0028] In one possible implementation, the tensioning assembly includes:

[0029] A vertical rotating drum is rotatably mounted on the frame, with a top end extending out of the mounting platform;

[0030] a turntable, coaxially fixed to the top of the vertical rotating drum;

[0031] A driver, fixed on the frame and dynamically connected to the vertical drum;

[0032] There are multiple sector discs, each of which is annularly arranged on the turntable around the axis of the turntable, and each of the sector discs is slidably connected to the turntable along the radial direction of the turntable; each of the sector discs is combined to form the tensioning portion;

[0033] A spring ring is sleeved on the annular surface formed by the combination of the sector disks;

[0034] A vertical driving member is fixed on the frame and connected to each of the sector disks, and is used to drive each of the sector disks to move outward to fix the annular supporting ring erected on the supporting structure.

[0035] In a possible implementation, the vertical driving member includes:

[0036] A vertical telescopic structure, located below the vertical rotating drum, having a telescopic end that can move vertically;

[0037] A pull rod is vertically arranged, with its bottom end being rotatably connected to the telescopic end of the vertical telescopic structure and its top end extending through the vertical rotating drum;

[0038] The push plate is located at the top of each of the sector-shaped plates and is connected to the pull rod. The bottom of the push plate is provided with a conical surface that can be adapted to each of the sector-shaped plates.

[0039] In a possible implementation, each of the support structures includes:

[0040] Fixed pole;

[0041] A cylinder, fixed on the fixed vertical rod, having a telescopic end extending upward;

[0042] The supporting plate is horizontally arranged on the telescopic end of the cylinder.

[0043] In this implementation, the tensioning assembly mounted on the frame can prop up the annular support ring via the tensioning portion, thereby securing the ring. Each supporting structure can ensure that the annular support ring is supported before the tensioning portion supports the annular support ring, ensuring that the upper and lower edges of the annular support ring extend beyond the two contact planes to the same length, thereby ensuring the hemming effect. The hemming mechanism can independently fold the two protruding edges of the annular support ring by driving the horizontal movement of the two hemming portions. This allows for simultaneous folding of both edges with a single assembly of the annular support ring, improving production efficiency and enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic structural diagram of a double-edge folding device for an annular support ring according to an embodiment of the present invention;

[0045] Figure 2 A schematic structural diagram of a double-edge folding device for an annular support ring according to an embodiment of the present invention;

[0046] Figure 3 A schematic diagram of the main structure of a double-edge folding device for an annular support ring provided in an embodiment of the present invention;

[0047] Figure 4 A schematic cross-sectional view of a tensioning assembly of a double-edge folding device for an annular support ring according to an embodiment of the present invention;

[0048] Figure 5 Schematic diagram of the folding mechanism structure of the double-edge folding device for the annular support ring provided in an embodiment of the present invention Figure 1 ;

[0049] Figure 6Schematic diagram of the folding mechanism structure of the double-edge folding device for the annular support ring provided in an embodiment of the present invention Figure 2 ;

[0050] Figure 7 Schematic diagram of the folding mechanism structure of the double-edge folding device for the annular support ring provided in an embodiment of the present invention Figure 3 .

[0051] Description of reference numerals:

[0052] 10. Rack; 11. Mounting platform; 12. Slide rail;

[0053] 20. Tensioning assembly; 21. Vertical rotating drum; 22. Rotating plate; 23. Sector plate; 24. Spring ring; 25. Vertical driving member; 251. Vertical telescopic structure; 252. Pull rod; 253. Push plate; 26. Driver;

[0054] 30. Support structure; 31. Fixed pole; 32. Cylinder; 33. Support plate;

[0055] 40. Folding mechanism; 41. Slide frame; 411. Slide groove; 42. Pressing roller; 43. Lower folding assembly; 431. Lower slide seat; 432. Lower bending roller; 44. Upper folding assembly; 441. Upper slide seat; 442. Turning plate; 443. Upper bending roller; 444. Sliding limit rod; 445. Spring; 446. Fixed wedge; 447. Notch; 448. Limiting crossbar; 45. Lower telescopic structure; 46. Upper telescopic structure; 47. Driving mechanism;

[0056] 50. Annular support ring;

[0057] 60. Grinding assembly; 61. Sliding base; 62. Adjustment structure; 63. Cutting tool. DETAILED DESCRIPTION

[0058] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0059] Please also refer to Figure 1 and Figure 2The double-edge folding device for an annular support ring provided by the present invention will now be described. The double-edge folding device for an annular support ring comprises a frame 10, a tensioning assembly 20, a support structure 30, and a folding mechanism 40. The frame 10 has a mounting platform 11. The tensioning assembly 20 is mounted on the frame 10 and comprises a tensioning portion located above the mounting platform 11. The tensioning portion has contact planes at its upper and lower ends, and the tensioning portion is adapted to accommodate an annular support ring 50. Multiple support structures 30 are provided, each disposed around the tensioning portion. Each support structure 30 is adapted to accommodate the annular support ring 50, which is mounted on the tensioning portion, so that the upper and lower edges of the annular support ring 50 extend vertically beyond the two contact planes. The folding mechanism 40 is mounted on the mounting platform 11 and comprises two bending portions located vertically on either side of the tensioning portion, corresponding to the two contact planes. The folding mechanism 40 is adapted to drive the two bending portions to move radially along the tensioning portion to fold the two edges of the annular support ring 50 outward.

[0060] Compared to the prior art, the double-edge folding device for an annular support ring provided in this embodiment utilizes a tensioning assembly 20 mounted on a frame 10 that props up the annular support ring 50 via a tensioning portion, thereby securing the annular support ring 50. Each support structure 30 ensures that the annular support ring 50 is supported before the tensioning portion supports the annular support ring 50, ensuring that the upper and lower edges of the annular support ring 50 extend beyond the two contact planes to the same length, thereby ensuring the folding effect. The folding mechanism 40 drives the horizontal movement of the two bending portions to fold the two protruding edges of the annular support ring 50, respectively. This allows for simultaneous folding of both edges by only one assembly of the annular support ring 50, improving production efficiency and enhancing practicality.

[0061] In some embodiments, the above-mentioned folding mechanism 40 can be used as follows Figures 1 to 3 The structure shown. Figures 1 to 3 The folding mechanism 40 includes a slide frame 41, a pressure roller 42, a lower folding assembly 43, an upper folding assembly 44 and a drive structure 47. The slide frame 41 is slidably connected to the slide rail 12 arranged on the mounting platform 11, and can move radially along the tensioning part. The slide frame 41 is also connected to the drive structure 47 arranged on the mounting platform 11. The pressure roller 42 is rotatably arranged at one end of the slide frame 41 close to the tensioning part, and the rotation axis is arranged parallel to the rotation axis of the tensioning part, and can be in rolling contact with the outer wall of the annular support ring 50. The lower folding assembly 43 is slidably arranged in the slide frame 41 along the radial direction of the tensioning part, and is located below the tensioning part. The lower folding assembly 43 is connected to the lower telescopic structure 45 arranged on the slide frame 41. The upper folding assembly 44 is slidably arranged in the slide frame 41 along the radial direction of the tensioning part, and is located above the tensioning part. The upper folding assembly 44 is connected to the upper telescopic structure 46 arranged on the slide frame 41.

[0062] The slide frame 41 ensures that the pressure roller 42, the lower hemming assembly 43, and the upper hemming assembly 44 can move toward or away from the tensioning portion. The tensioning portion involves supporting the annular support ring 50 from within the annular support ring 50 to form a fixed position, and the flanging process is folded toward the outside of the tensioning portion. Therefore, the pressure roller 42 can ensure that it and the tensioning portion jointly clamp the annular support ring 50 and ensure that the annular support ring 50 is compressed, thereby ensuring the quality of the hemming. The lower hemming assembly 43 corresponds to the edge of the annular support ring 50 that extends out of the contact plane at the bottom end, and the upper hemming assembly 44 corresponds to the edge of the annular support ring 50 that extends out of the contact plane at the top end. Together, they ensure that both protruding edges can be folded simultaneously under the condition that the annular support ring 50 is assembled once, thereby improving production efficiency.

[0063] In this embodiment, the driving structure 47 may include a lead screw and a driving motor to ensure the movement accuracy of the sliding frame 41. The lead screw can be spirally connected to the nut part set at the bottom of the sliding frame 41, and the lead screw can be rotatably set on a fixed block set on the mounting platform 11, and the driving motor is connected to the lead screw power.

[0064] In some embodiments, the lower hem assembly 43 may be configured as follows: Figures 5 to 7 See the structure shown. Figures 5 to 7 The lower hemming assembly 43 includes a lower slide 431 and a lower bending roller 432. The lower slide 431 is slidably connected to the slide frame 41 and is connected to the lower telescopic structure 45. The lower bending roller 432 is rotatably mounted on the end of the lower slide 431 near the tensioning portion and is one of the bending portions.

[0065] The lower telescopic structure 45 drives the lower slide 431 to move horizontally, which ensures that the bending roller moves below the tensioning portion to below the pressure roller 42, thereby achieving the bending of the protruding edge of the bottom end of the annular support ring 50.

[0066] The lower bending roller 432 may be a truncated cone shaped structure with its axis tilted upwards. Figure 5 .

[0067] In some embodiments, the upper hem assembly 44 may be configured as follows: Figures 5 to 7 See the structure shown. Figures 5 to 7The upper folding assembly 44 includes an upper slide 441, a flip plate 442, an upper bending roller 443, a sliding limit rod 444, a spring 445, and a fixed wedge 446. The upper slide 441 is slidably connected to the slide frame 41 and is connected to the upper telescopic structure 46. The upper slide 441 has a front end arranged near the tensioning portion and a rear end arranged away from the tensioning portion. The flip plate 442 has a head end and a tail end. The flip plate 442 is rotatably arranged in the notch 447 of the upper slide 441. The adapter shaft of the flip plate 442 is located between the head end and the tail end, and the axis is arranged perpendicular to the sliding direction of the upper slide 441. The head end of the flip plate 442 has a tendency to continuously pitch upward. The upper bending roller 443 is rotatably arranged at the head end of the flip plate 442 to pitch and rotate under the drive of the flip plate 442. The upper bending roller 443 is one of the bending parts. A sliding stopper rod 444 is mounted on the upper slide 441, sliding along the direction of the upper slide 441. A vertically extending stopper block is provided at the top of the sliding stopper rod 444, which engages with a clearance opening at the rear end of the flip plate 442. A spring 445 is mounted on the upper slide 441, springing the sliding stopper rod 444, causing it to continuously move toward the front end of the upper slide 441. A fixed wedge block 446 is fixed to the slide frame 41, extending into the notch 447 and corresponding to the stopper block.

[0068] When the upper slide 441 moves to its limit position near the tensioning portion, the sliding limit rod 444 is located at the rear end of the flip plate 442 and engages with the flip plate 442, maintaining the flip plate 442 in a horizontal position. When the upper slide 441 moves to its limit position away from the tensioning portion, the sliding limit rod 444 is squeezed by the fixed wedge 446 and released from the engagement with the flip plate 442. The sliding limit rod 444 is then pushed by the spring 445 to the leading end of the flip plate 442, causing the leading end of the flip plate 442 to tilt upward.

[0069] After the formed annular support ring 50 is removed from the tensioner, the annular support ring 50 to be bent must be assembled onto the tensioner. However, the upper bending roller 443 is close to the contact plane at the top of the tensioner. Therefore, after the annular support ring 50 is assembled onto the tensioner, the upper bending roller 443 cannot move directly above the tensioner due to travel interference.

[0070] The upper folding component 44 provided in this embodiment can effectively avoid the above problems. The specific working process thereof is as follows. Figure 7At this time, the upper bending roller 443 is located above the contact plane at the top of the tensioning part, and the flip plate 442 is set horizontally. The sliding limit rod 444 below the flip plate 442 is connected with the avoidance opening at the tail end of the flip plate 442 through the limit block, and the sliding limit rod 444 is now between the adapter shaft and the tail end of the flip plate 442, and the flip plate 442 cannot rotate. As the lower telescopic structure 45 drives the lower slide 431 to move away from the tensioning part, the lower slide 431 also drives the flip plate 442 to move synchronously, and then drives the sliding limit rod 444 to move synchronously, realizing the folding of the top edge of the annular support ring 50. When the upper bending roller moves to the top of the pressure roller 42 and completes the folding work of the annular support ring 50, you can refer to Figure 4 , the fixed wedge block 446 will touch the limit block at the top of the sliding limit rod 444, and through the contact of the inclined surface, the limit block will be pressed down to the inside of the sliding limit rod 444. At this time, the sliding limit rod 444 is pushed by the spring 445 and will move to the position between the adapter shaft and the head end of the flip plate 442. The flip plate 442 has no limit at this time. Under the action of the torsion spring connected to the adapter shaft, the head end will drive the upper bending roller 443 to pitch and flip upward. The annular support ring 50 that has been bent can then be disassembled, and the annular support ring 50 to be folded can be assembled. After the annular support ring 50 to be folded is assembled, the upper slide 441 is pushed by the upper telescopic structure 46 to move close to the tensioning part, which involves the fixed position of the sliding limit rod 444 and will move relative to the flip plate 442. When the sliding limit rod 444 moves from the adapter shaft to the tail end of the flip plate 442, you can see Figure 5 After the flip plate 442 is pushed by the sliding limit rod 444, the head end will pitch and rotate downward, and the upper bending roller 443 will jump over the top of the annular support ring 50 to be folded until the flip plate 442 is set horizontally and the limit block of the sliding limit rod 444 is engaged with the avoidance opening at the tail end of the flip plate 442.

[0071] The upper hemming assembly 44 is driven solely by an upper telescopic structure 46, allowing the upper bending roller 443 to leap over the annular support ring 50 to be folded as the upper slide 441 moves toward the tensioning portion, thus avoiding travel interference and ensuring the loading of the annular support ring 50. Furthermore, the upper bending roller 443 can stably bend the top edge of the annular support ring 50 while also moving away from the tensioning portion, effectively ensuring improved hemming efficiency for the annular support ring 50 and demonstrating its high practicality.

[0072] It should be noted that the tendency for the tip of the flip plate 442 to continuously rotate upward can be achieved by a torsion spring disposed on the adapter shaft. This technology is well known to those skilled in the art and will not be elaborated on here. Furthermore, regarding the provision of a stop block on the sliding stop rod 444, a sliding cavity for the stop block to slide can be defined on the sliding stop rod 444, with the top of the stop block extending out of the cavity and an elastic member disposed at the bottom. This technology is a conventional arrangement.

[0073] In this embodiment, a sliding cavity for the sliding limit rod 444 to slide is provided on the upper slide seat 441, and the number of the springs 445 can be set to be multiple to ensure the stability of the sliding.

[0074] It should be noted that the upper bending roller 443 may have the same specifications as the lower bending roller 432. When the flip plate 442 is pitched and rotated to a horizontal setting, the axis of the upper bending roller 443 may be set obliquely downward to form a symmetry with the lower bending roller 432.

[0075] In some embodiments, the upper hem assembly 44 may be configured as follows: Figures 5 to 7 The structure shown. Figures 5 to 7 The upper folding assembly 44 also includes a limiting cross bar 448, which is located at the end of the upper slide 441 close to the tensioning portion, and can limit the tilting and downward flipping of the flip plate 442 so that the flip plate 442 is set horizontally.

[0076] The setting of the crossbar can ensure that after the tip of the flip plate 442 is pitched downward, the maximum position is when the flip plate 442 is horizontally set. Figure 7 .

[0077] In some embodiments, the sliding limit rod 444 can be used as follows: Figures 5 to 7 The structure shown. Figures 5 to 7 The two ends of the sliding limit rod 444 extend out of the upper slide seat 441 respectively, and are slidably connected to the sliding grooves 411 set on both sides of the slide frame 41 respectively.

[0078] The sliding limit rod 444 is slidably connected to the sliding cavity set on the upper slide 441, but the sliding limit rod 444 has an extreme position during the process of moving close to the tensioning part. The sliding groove 411 on both sides of the slide frame 41 can ensure that the extreme position of the sliding limit rod 444 is constrained, thereby ensuring that the sliding limit rod 444 moves between the two sides of the transfer shaft of the flip plate 442, thereby realizing the constraint of the flip plate 442, or releasing the constraint of the flip plate 442.

[0079] In some embodiments, the tensioning assembly 20 may be configured as follows: Figure 4 The structure shown. Figure 4The tensioning assembly 20 includes a vertical rotating drum 21, a turntable 22, a driver 26, a sector disk 23, a spring coil 24, and a vertical driving member 25. The vertical rotating drum 21 is rotatably mounted on the frame 10, with its top end extending out of the mounting platform 11. The turntable 22 is coaxially fixed to the top end of the vertical rotating drum 21. The driver 26 is fixed to the frame 10 and is power-connected to the vertical rotating drum 21. There are a plurality of sector disks 23, each of which is arranged in a ring around the axis of the turntable 22, and each sector disk 23 is slidably connected to the turntable 22 along the radial direction of the turntable 22. The sector disks 23 are combined to form a tensioning portion. The spring coil 24 is sleeved on the annular surface formed by the combination of the sector disks 23. The vertical driving member 25 is fixed on the frame 10 and connected to each sector disk 23 , and can drive each sector disk 23 to move outward to fix the annular support ring 50 erected on the support structure 30 .

[0080] The vertical rotating drum 21 and the rotating disk 22 are driven by the driver 26 to rotate, thereby driving the rotation of the sector disks 23 and the annular support ring 50, ensuring the hemming effect. The spring ring 24 ensures that after the bending is completed and the vertical driving member 25 releases the restraint on the sector disks 23, the sector disks 23 are pulled radially inward along the rotating disk 22 to facilitate the removal and placement of the annular support ring 50.

[0081] This structure can ensure that the annular support ring 50 is supported and fixed, and ensure the folding effect of the annular support ring 50.

[0082] In this embodiment, the driver 26 and the vertical drum 21 can be connected via gears.

[0083] In this embodiment, an arcuate groove for accommodating the spring ring 24 may be provided on the arcuate surface of each sector disk 23 to prevent the spring ring 24 from contacting the annular support ring 50 .

[0084] In this embodiment, a plurality of long sliding openings are provided on the turntable 22, each of which is arranged along the radial direction of the turntable 22 and corresponds one-to-one to each sector disk 23. Each sector disk 23 can be slidably connected to the corresponding long sliding opening by a bolt.

[0085] In some embodiments, the vertical drive member 25 may be configured as follows: Figure 4 See the structure shown. Figure 4The vertical drive member 25 comprises a vertical telescopic structure 251, a pull rod 252, and a push plate 253. The vertical telescopic structure 251 is located below the vertical rotating drum 21 and has a vertically movable telescopic end. The pull rod 252 is vertically arranged, with its bottom end pivotally connected to the telescopic end of the vertical telescopic structure 251 and its top end extending through the vertical rotating drum 21. The push plate 253 is located at the top of each sector-shaped disk 23 and connected to the pull rod 252. The bottom of the push plate 253 has a conical surface that mates with each sector-shaped disk 23.

[0086] The pull rod 252 contacts each sector disk 23 through the push plate 253. After the pull rod 252 pulls the push plate 253 downward, it pushes each sector disk 23 outward through the conical surface, thereby causing each sector disk 23 to support the annular support ring 50. At this time, the pull rod 252 rotates synchronously with the vertical rotating drum 21. Therefore, the pull rod 252 is rotatably connected to the telescopic end of the vertical telescopic structure 251, which can ensure that the vertical telescopic structure 251 is stationary. Specifically, a thrust bearing can be used.

[0087] In some embodiments, the support structure 30 may be formed as follows: Figures 1 to 2 See the structure shown. Figures 1 to 2 Each support structure 30 includes a fixed upright pole 31, a cylinder 32, and a support plate 33. The cylinder 32 is fixed on the fixed upright pole 31 and has a telescopic end extending upward. The support plate 33 is horizontally arranged on the telescopic end of the cylinder 32.

[0088] The cylinder 32 can ensure that the height of the supporting plate 33 can be adjusted, thereby adapting to annular support rings 50 of different specifications and enhancing adaptability.

[0089] In some embodiments, see Figure 3 The double-edge folding device for the annular support ring further includes a grinding assembly 60. The grinding assembly 60 may include a sliding base 61 slidably connected to the guide rail on the mounting platform 11, an adjustment structure 62 for driving the sliding base 61 to move radially along the tensioning portion, and a cutting tool 63 disposed on the sliding base 61. The adjustment structure 62 may be a manually adjustable screw. The grinding assembly 60 ensures that the folded edges of the annular support ring 50 are polished to remove burrs, ensuring that the specifications of the upper and lower folds of the annular support ring 50 are consistent, improving the folding quality, simplifying the process, and further increasing production efficiency.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Double edge folding device for annular support ring, characterized in that: include: a rack having a mounting platform; A tensioning assembly is provided on the frame and comprises a tensioning portion located above the mounting platform, wherein contact planes are respectively provided at the upper and lower ends of the tensioning portion, and the tensioning portion is used for the annular support ring to be sleeved; A plurality of support structures are provided, each of the support structures is arranged around the tensioning portion, and each of the support structures is used to support an annular support ring sleeved on the tensioning portion, so that the upper and lower edges of the annular support ring extend vertically out of the two contact planes respectively; a folding mechanism, disposed on the mounting platform, having two folding portions vertically located on either side of the tensioning portion and corresponding to the two contact planes, the folding mechanism being configured to drive the two folding portions to move radially along the tensioning portion to fold the two edges of the annular support ring outward; wherein, the folding mechanism comprises a sliding frame, a pressure roller, a lower folding assembly and an upper folding assembly; the sliding frame is slidably connected to a slide rail provided on the mounting platform for radially moving along the tensioning portion; the sliding frame is also connected to a driving structure provided on the mounting platform; the lower folding assembly is arranged on the sliding frame for sliding along the radial direction of the tensioning portion, and is located below the tensioning portion, the lower folding assembly is connected to a lower telescopic structure provided on the sliding frame; the upper folding assembly is arranged on the sliding frame for sliding along the radial direction of the tensioning portion, and is located above the tensioning portion, and the upper folding assembly is connected to an upper telescopic structure provided on the sliding frame; Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The cam is fixedly mounted on the sliding frame and is adapted to engage with the front end of the sliding frame so as to engage with the front end of the sliding frame when the sliding frame is in the limit position.

2. The double-edge folding device for an annular support ring according to claim 1, characterized in that: The lower folding assembly comprises: A lower sliding seat is slidably connected to the sliding frame and connected to the lower telescopic structure; The lower bending roller is rotatably arranged on the lower sliding seat near the end of the tensioning part, and the lower bending roller is one of the bending parts.

3. The double-edge folding device for an annular support ring according to claim 1, characterized in that: The upper folding assembly further includes a limiting cross bar, which is located at the end of the upper slide close to the tensioning portion and is used to limit the flip plate that is flipped downward in pitch so that the flip plate is set horizontally.

4. The double-edge folding device for an annular support ring according to claim 1, characterized in that: The tensioning assembly comprises: A vertical rotating drum is rotatably mounted on the frame, with a top end extending out of the mounting platform; a turntable, coaxially fixed to the top of the vertical rotating drum; A driver, fixed on the frame and dynamically connected to the vertical drum; There are multiple sector discs, each of which is annularly arranged on the turntable around the axis of the turntable, and each of the sector discs is slidably connected to the turntable along the radial direction of the turntable; each of the sector discs is combined to form the tensioning portion; A spring ring is sleeved on the annular surface formed by the combination of the sector disks; A vertical driving member is fixed on the frame and connected to each of the sector disks, and is used to drive each of the sector disks to move outward to fix the annular supporting ring erected on the supporting structure.

5. The double-edge folding device for an annular support ring according to claim 4, characterized in that: The vertical driving member comprises: A vertical telescopic structure, located below the vertical rotating drum, having a telescopic end that can move vertically; A pull rod is vertically arranged, with its bottom end being rotatably connected to the telescopic end of the vertical telescopic structure and its top end extending through the vertical rotating drum; The push plate is located at the top of each of the sector-shaped plates and is connected to the pull rod. The bottom of the push plate is provided with a conical surface that can be adapted to each of the sector-shaped plates.

6. The double-edge folding device for an annular support ring according to claim 1, characterized in that: Each of the support structures comprises: Fixed pole; A cylinder is fixed on the fixed vertical rod and has a telescopic end extending upward; The supporting plate is horizontally arranged on the telescopic end of the cylinder.

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